Estimation of prevalence of sarcopenia by using a new bioelectrical impedance analysis in Chinese community-dwelling elderly people

Table 3 Estimated prevalence of low SM, low HS, low GS and sarcopenia in different age groups and the elderly

	Age group (year)	Number	Low muscle mass	Low gait speed	Low handgrip strenth	Sarcopenia
Male	60–64	146	40 (27.4)	4 (2.7)	5 (3.4)	4 (2.7)
	65–74	199	68 (34.2)	9 (4.5)	4 (2.0)	8 (4.0)
	≥75	117	52 (44.4)	18 (15.4)	20 (17.1)	18 (15.4)
	elderly	316	120 (38.0)	27 (8.6)	24 (7.6)	26 (8.2)
p			0.015	<0.001	<0.001	<0.001
Female	60–64	162	20 (12.3)	6 (3.7)	6 (3.7)	3 (1.9)
	65–74	226	37 (16.4)	17 (7.5)	17 (7.5)	16 (7.1)
	≥75	94	36 (38.3)	22 (23.4)	25 (26.2)	24 (25.5)
	elderly	320	73 (22.8)	39 (12.2)	42 (13.1)	40 (12.5)
p			<0.001	<0.001	<0.001	<0.001

Low muscle mass was defined as appendicular skeletal muscle mass index (ASMI) <7 kg/m2 for males and <5.7 kg/m2 for females; low gait speed (GS) as GS <0.8 m/s; low handgrip strength (HS) as HS <26 kg for males or <18 kg for females. Using Pearson chi-Square tests or Fisher exact test (for which an expected cell count was <5) for categorical variables. Comparison between 60-64, 65-74, and ≥75, p < 0.05 was considered statistically significant

ISSN: 1471-2318